Multi-Input Presentation Switcher
AT-DRC444
User Manual
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INTRODUCTION
The Atlona AT-DRC444 is a Multi-Input Presentation Switcher designed with 3 x Audio and Video Switcher platforms
built into one product.
The Atlona Multi-Input Presentation switch includes 4 inputs, one output Composite Video Switch; 4 inputs, one output
VGA switch; and 2 input DVI and 2 input HDMI to one DVI Output Switch. Each video input is accompanied with its own
audio input. Furthermore, the switcher is featured with microphone input and allows user to mix the microphone signal
with the main audio in “talk-over” mode. The Atlona DRC444 is designed to be controlled via RS232, RS485 or IR.
FEATURES
• Offers 3 separate switching platforms which includes 4 inputs, one output Composite Video Switch; 4 inputs, one
output VGA switch; and 2 input DVI and 2 input HDMI to one DVI Output Switch.
• Either platform (Composite, VGA or DVI/HDMI) could be switched simultaneously, as all 3 Video Platforms are com-
pletely separated from each other.
• Each video input is accompanied with its own audio input (total 12 audio inputs)
• Microphone input, allows user to mix the microphone signal with the main audio in “talk-over” mode.
• Video:
a) The DVI/HDMI inputs can support extremely high resolutions up to 1920x1200 and fully EDID and HDCP compliant.
DVI/HDMI platforms will pass up to 10.2Gbps
b) The VGA inputs can support extremely high bandwidth of 750MHz and therefore up to 3200x2400 in resolutions.
The VGA platform fully supports DDC.
c) The Composite video inputs are compatible with NTSC 3.58, NTSC 4.42, PAL, and SECAM formats.
• Audio:
a) Twelve inputs include four stereo balanced/unbalanced on capture screw connectors on Composite Video Platform,
for 3.5mm (1/8-inch) audio inputs on VGA platform and four stereo balanced/unbalanced on capture screw con-
nectors on DVI/HDMI platform.
b) Each one of the Audio inputs supports separate Audio adjustments and presets.
• Auto-control and Learning function:
a) The AT-DRC444 can learn and automatically transmit the RS232/RS485 commands to the Display which allows
switching the display on/off or changing inputs.
• Control :
a) RS-232 input, allows user to control the DRC444 with a 3rd party control system.
b) RS-232/RS-485 output, programmable output, allows users to send commands to Display’s.
c) IR remote control.
• Rack-mountable, 1U height.
• Internal power supply (100Volt~240Volt AC, 50/60Hz)
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PACKAGE CONTENT
• 1 x AT-DRC444
• 1 x Power Cable
• 1 x IR Remote Control
• 1 x RS232 Cable
• 1 x Instructions Manual
SPECIFICATIONS
Video inputs
2 x DVI (DVI-D Only 24+1 Pin Female), 2 x HDMI (Type A female), 4 x VGA (HD15 female),
4 x Composite Video (BNC male)
Video outputs
1 x DVI (DVI-D Only 24+1 Pin Female) , 1 x VGA (HD15 female), 1 x Composite Video
(BNC male)
Video resolution
DVI/HDMI up to 1920x1200 or 1080p;
VGA up to 3200x2400 @60Hz;
Composite Video: NTSC 3.58, NTSC 4.42, PAL, and SECAM
Video bandwidth
DVI/HDMI: 340MHz (10.2Gbps);
VGA: 750MHz (-2.8dB) / Crosstalk ([email protected]) / 0.5V~2.0Vp-p;
Composite Video: 150MHz
Switching Speed
HDCP
200ns
DVI/HDMI Inputs are HDCP Compliant
VGA/HDMI/DVI Inputs are EDID/DDC compliant
12 Stereo line audio, 1 Mic
EDID/DDC
Audio Inputs
Audio Outputs
Input Connectors
3 x Stereo unbalanced line audio and 1 x unbalanced programmed audio
4 x 1/8-inch (3.5mm) – for VGA; 8 x Captive Screw connectors – for DVI/HDMI and
Composite and 1 x ¼-inch (6.3mm) – Mic
Audio Frequency
CMRR
20Hz~20K Hz
>90dB @20Hz to 20K Hz
DB9 (2 = TX, 3 = RX, 5 = GND)
100~ 240VAC, 50/60Hz
25W
RS232
Power supply
Power consumption
Dimensions (inch)
Dimensions (mm)
Weight
W19 x H1.73 x D9.25 - 1U
W483 x H44 x D235 - 1U
4lb
Operating Temperature
Operational Humidity
-20oC ~ +70oC
10% ~ 90%
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PANEL DESCRIPTIONS
1. Front Panel
1
2
3
4
5
6
1. IR sensor
2. Power status LED indicator
3. DVI/HDMI Selection buttons.
4. Composite Video Selection buttons.
5. VGA Selection Buttons.
6. Volume adjustments and switching between Line Input and Mic Input
a) Switch between Line Input and Mic Input by pressing a button. The LED will indicate which input is selected.
b) Turn knob to adjust either a Mic level or a Line Input Level.
c) Push knob to mute. If Mic is selected, the Mic will mute and if Line Input is selected the Line Input will mute.
2. Rear Panel
1
2
5
6
3
4
7
1) DVI/HDMI Inputs (4 inputs and 1 output)
2) Composite Video Inputs (4 inputs and 1 output)
3) VGA Inputs (4 inputs and 1 output)
4) 3 sets of 4 by 1 Audio Switchers:
a. VGA audio: 3.5mm (1/8-inch) 4 by 1 switch
b. DVI audio: Balance/unbalance stereo audio on capture screw connector, 4 by 1 switch
c. Composite audio: Balance/unbalance stereo audio on capture screw connector, 4 by 1 switch
d. Prog. Out: Line Audio Break-out, can be mixed with any other Line Audio Inputs or Mic Audio.
5) RS-232 input: Connect to a 3rd party control system
6) RS-232 & RS-485 outputs: connect to the display e.g., Projector, LCD, LED or Plasma Display.
7) Power Cable Input
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IR REMOTE CONTROL
1. Audio volume adjustment:
“Mute”: mute audio.
“Audio Lock”: keep the last switched audio on, it will not change when another
video input is selected.
1
2
“– and +”: adjust the volume of Line audio or Mic Audio.
2. Video signal switching:
Switch between 3 platforms (DVI/HDMI, VGA and Composite Video); The selection
on each platform will also carry audio signal along, unless it’s locked.
RS232 CONTROL
Baud Rate: 9600
Data Bit: 8
Parity: None
Stop Bit: 1
Series
600%
Function
Mute
Feedback code
Mute ON /Mute OFF
601%
Master volume +
Master volume -
MIC volume +
VGA 1 Volume : XX (0~60)
VGA 1 Volume : XX (0~60)
MicVolume : XX (0~60)
MicVolume : XX (0~60)
System Locked!/System Unlock!
Line out Volume : XX (0~60)
MicVolume : XX (0~60)
0602%
603%
0604%
LOCK%
01XX%
02XX%
MIC volume -
Keyboard Lock
Set Line volume to ‘XX’ 0~60
Set MIC volume to ‘XX’ 0~60
Check Series:
Current video source,
Switching series,
Last video source status,
Baud rate
Source: VGA 1
232/485 DVI data:
232/485 AV data:
232/485 VGA data:
232/485 Current data:
Baud rate: 9600
0700%
0701%
0702%
0703%
Switch to DVI Input # 1
Switch to DVI Input # 2
Switch to HDMI Input # 3
Source: DVI 1
Source: DVI 2
Source: DVI 3
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Series
0704%
0709%
0710%
0711%
0712%
0705%
0706%
0707%
0708%
0747%
0748%
Function
Feedback code
Source: DVI 4
Switch to HDMI Input # 4
Switch to VGA Input # 1
Source: VGA 1
Switch to VGA Input # 2
Source: VGA 2
Switch to VGA Input # 3
Source: VGA 3
Switch to VGA Input # 4
Source: VGA 4
Switch to Composite Video Input # 1
Switch to Composite Video Input # 2
Switch to Composite Video Input # 3
Switch to Composite Video Input # 4
Lock audio
Source: CVIDEO 1
Source: CVIDEO 2
Source: CVIDEO 3
Source: CVIDEO 4
LOCK VOICE OUT
UNLOCK VOICE OUT
Unlock audio input
DVI 1 Volume: XX (0~60)
DVI 2 Volume: XX (0~60)
DVI 3 Volume: XX (0~60)
DVI 4 Volume: XX (0~60)
AV 1 Volume: XX (0~60)
AV 2 Volume: XX (0~60)
AV 3 Volume: XX (0~60)
AV 4 Volume: XX (0~60)
VGA 1 Volume: XX (0~60)
VGA 2 Volume: XX (0~60)
VGA 3 Volume: XX (0~60)
VGA 4 Volume: XX (0~60)
MicVolume: XX (0~60)
0800%
Check the volume
0801%
0802%
0803%
0804%
0805%
0806%
/+1xxxx;
Set Baud rate to 4800 bps
Set Baud rate to 9600 bps
Set Baud rate to 19200 bps
Set Baud rate to 38400 bps
Set Baud rate to 57600 bps
Set Baud rate to 115200 bps
Baud rate: 4800
Baud rate: 9600
Baud rate: 19200
Baud rate: 38400
Baud rate: 57600
Baud rate: 115200
232/485 DVI data: XXXXXXX
Send Command though RS232/485 Output which
will follow DVI/HDMI platform
/+2xxxx;
/+3xxxx;
Send Command though RS232/485 Output which
232/485 AV data: XXXXXXX
232/485 VGA data: XXXXXXX
232/485 Direct out data: XXXXXXX
will follow Composite platform
Send Command though RS232/485 Output which
will follow VGA platform
/+0xxxx;
Send Direct Command though RS232/485 Output
0900%
Change all volume input mode
Change to output vol. control/Change to input
vol. control
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Series
31XX%
32XX%
33XX%
34XX%
41XX%
42XX%
43XX%
44XX%
51XX%
52XX%
53XX%
54XX%
Function
Feedback code
Set DVI 1 volume to XX
Set DVI 2 volume to XX
Set DVI 3 volume to XX
Set DVI 4 volume to XX
Set AV 1 volume to XX
Set AV 2 volume to XX
Set AV 3 volume to XX
Set AV 4 volume to XX
Set VGA 1 volume to XX
Set VGA 2 volume to XX
Set VGA 3 volume to XX
Set VGA 4 volume to XX
DVI 1 Volume : XX 0~60
DVI 2 Volume : XX 0~60
DVI 3 Volume : XX 0~60
DVI 4 Volume : XX 0~60
AV 1 Volume : XX 0~60
AV 2 Volume : XX 0~60
AV 3 Volume : XX 0~60
AV 4 Volume : XX 0~60
VGA 1 Volume : XX 0~60
VGA 2 Volume : XX 0~60
VGA 3 Volume : XX 0~60
VGA 4 Volume : XX 0~60
CONNECTION DIAGRAM
HDMI Blu-Ray Player
Camera
Projector
VGA or DVI
PC
Laptop
Display
Speakers
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TROUBLESHOOTING
1. Image Ghosting is usually related to the low quality cables or extremely long length. Please try replacing cables with
extenders or better quality cables.
2. If user is not able to connect to the DCR444 via RS232, this may be related to either incorrect COM port being used
or incorrect wiring on the serial cable. Please use the supplied RS232.
3. Interference on the output signal is usually caused by long cables or if switcher is not grounded. Please rack-mount
the switcher and make sure that the rack is grounded properly.
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SAFETY INFORMATION
Safeguards
To reduce the risk of electric shock, do not
expose this product to rain or moisture
Do not modify the wall plug. Doing so will
void the warranty and safety features.
If the wall plug does not fit into your local
power socket, hire an electrician to replace
your obsolete socket.
This equipment should be installed near
the socket outlet and the device should
be easily accessible in the case it requires
disconnection.
Precautions
FCC regulations state that any unauthorized changes or modifications to this equipment, not expressly ap-
proved by the manufacturer, could void the user’s authority to operate this equipment.
Operate this product using only the included external power supply. Use of other power supplies could impair
performance, damage the product, or cause fires.
In the event of an electrostatic discharge this device may automatically turn off. If this occurs, unplug the device
and plug it back in.
Protect and route power cords so they will not be stepped on or pinched by anything placed on or against
them. Be especially careful of plug-ins or cord exit points from this product.
Avoid excessive humidity, sudden temperature changes or temperature extremes.
Keep this product away from wet locations such as bathtubs, sinks, laundries, wet basements, fish tanks, and
swimming pools.
Use only accessories recommended by Atlona to avoid fire, shock, or other hazards.
Unplug the product before cleaning. Use a damp cloth for cleaning and not cleaning fluid or aerosols.
Such products could enter the unit and cause damage, fire, or electric shock. Some substances may also mar
the finish of the product.
Never open, remove unit panels, or make any adjustments not described in this manual. Attempting to do
so could expose you to dangerous electrical shock or other hazards. It may also cause damage to your AT-
DRC444. Opening the product will void the warranty.
Do not attempt to service the unit. Disconnect the product and contact your authorized Atlona reseller or con-
tact Atlona directly.
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WARRANTY
Limited Warranty
Atlona Technologies warrants that (a) its products (the AT-DRC444) will perform substantially in accordance
with the accompanying written materials for a period of 3 years from the date of receipt and (b) that the
product will be free from defects in materials and workmanship under normal use and service for a period of
3 years. In the event applicable law imposes any implied warranties, the implied warranty period is limited to 3
years from the date of receipt. Some jurisdictions do not allow such limitations on duration of an implied war-
ranty, so the above limitation may not apply to customers that fall within those areas.
Customer Remedies
Atlona Technologies’ and its suppliers’ entire liability and Customer’s exclusive remedy shall be, at Atlona Tech-
nologies’ decision, either return of the price paid for the product, repair, or replacement of the product that
does not meet this Limited Warranty and which is returned to Atlona Technologies with a copy of the Cus-
tomer’s receipt. This Limited Warranty is void if failure of the product has resulted from accident, abuse, misap-
plication, or natural occurrence. In example but not limited to: power surges (electrical storms, local power out-
age), dropping the product (or items on the product), contact with fluids, and physical misconduct (i.e. kicking
or punching). Any replacement product will be warranted for the remainder of the original warranty period.
No other warranties
To the maximum extent permitted by applicable law, Atlona Technologies and its suppliers disclaim all other
warranties, either expressed or implied, including, but not limited to, implied warranties of merchantability
and fitness for a particular purpose, with regard to the product and any related written materials. This Limited
Warranty gives customer specific legal rights. Customers may have other rights depending on the jurisdiction.
No liability for damages
To the maximum extent permitted by applicable law, in no event shall Atlona Technologies or its suppliers be
liable for any damages arising out of the use of or inability to use this product, even if Atlona Technologies has
been advised of the possibility of such damages. Such damages include but are not limited to: special, inciden-
tal, consequential, or indirect damages for personal injury, loss of business profits, business interruption, loss
of business information, or any other pecuniary loss.
Atlona Technologies’ and its suppliers’ entire liability under any provision of this agreement shall be limited to
the amount actually paid by you for the product. Some Jurisdictions do not allow the exclusion or limitation
of liability for consequential or incidental damage. The above limitations may not apply to you in such jurisdic-
tional cases.
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ATLONA PRODUCT REGISTRATION
Thank you for purchasing this Atlona product. - We hope you enjoy it and will take an extra few
moments to register your new purchase.
Registration creates an ownership record if your product is lost or stolen and helps ensure you’ll
receive notification of performance issues and firmware updates.
At Atlona, we respect and protect your privacy, assuring you that your registration information
is completely secure. Atlona product registration is completely voluntary and failure to register will not
diminish your limited warranty rights.
To register go to: http://www.atlona.com/registration
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